open
1. a clear or unobstructed space or expanse of land or water (Freq. 1)
- finally broke out of the forest into the open
• Syn:
clear
• Derivationally related forms:
clear (for: clear)
• Hypernyms:
area, country
2. where the air is unconfined (Freq. 1)
- he wanted to get outdoors a little
- the concert was held in the open air
- camping in the open
• Syn:
outdoors, out-of-doors, open air
• Derivationally related forms:
outdoorsy (for: outdoors)
• Hypernyms:
outside, exterior
3. a tournament in which both professionals and amateurs may play
• Hypernyms:
tournament, tourney
4. information that has become public
- all the reports were out in the open
- the facts had been brought to the surface
• Syn:
surface
• Derivationally related forms:
surface (for: surface)
• Hypernyms:
public knowledge, general knowledge
1. cause to open or to become open (Freq. 66)
- Mary opened the car door
• Syn:
open up
• Ant:
close
• Derivationally related forms:
opener, opening
• Hyponyms:
unbar, break open, click open, reopen, unlock,
unbolt, unseal, uncork, pry, prise, prize,
lever, jimmy, gap, breach, lance
• Cause:
open up
• Verb Frames:
- Somebody ----s something
- Something ----s something
- They want to open the doors
2. start to operate or function or cause to start operating or functioning (Freq. 45)
- open a business
• Syn:
open up
• Ant:
close
• Derivationally related forms:
opening
• Hyponyms:
establish, set up, found, launch
• Verb Frames:
- Something ----s
- Somebody ----s something
- The business is going to open
3. become open (Freq. 17)
- The door opened
• Syn:
open up
• Ant:
close
• Derivationally related forms:
opening
• Hypernyms:
change state, turn
• Hyponyms:
unfasten, fly open
• Verb Frames:
- Something ----s
- The doors open
4. begin or set in action, of meetings, speeches, recitals, etc. (Freq. 14)
- He opened the meeting with a long speech
• Ant:
close
• See Also:
open up
• Derivationally related forms:
opener, opening
• Hypernyms:
start, start up, embark on, commence
• Hyponyms:
inaugurate, call to order
• Verb Frames:
- Somebody ----s something
- Something ----s something
5. spread out or open from a closed or folded state (Freq. 4)
- open the map
- spread your arms
• Syn:
unfold, spread, spread out
• Ant:
fold (for: unfold)
• Derivationally related forms:
opening
• Hypernyms:
undo
• Hyponyms:
divaricate, exfoliate, grass, butterfly, uncross, splay
• Verb Frames:
- Somebody ----s something
- Somebody ----s something PP
6. make available (Freq. 4)
- This opens up new possibilities
• Syn:
open up
• Derivationally related forms:
opening
• Hypernyms:
yield, give, afford
• Cause:
open up
• Verb Frames:
- Somebody ----s something
- Something ----s something
7. become available (Freq. 2)
- an opportunity opened up
• Syn:
open up
• Derivationally related forms:
opening
• Hypernyms:
arise, come up
• Verb Frames:
- Something ----s
8. have an opening or passage or outlet (Freq. 1)
- The bedrooms open into the hall
• Derivationally related forms:
opening
• Verb Frames:
- Something is ----ing PP
9. make the opening move (Freq. 1)
- Kasparov opened with a standard opening
• Derivationally related forms:
opening
• Topics:
chess, chess game
• Hypernyms:
move, go
• Verb Frames:
- Somebody ----s
10. afford access to
- the door opens to the patio
- The French doors give onto a terrace
• Syn:
afford, give
• Derivationally related forms:
opening
• Verb Frames:
- Something is ----ing PP
11. display the contents of a file or start an application as on a computer
• Ant:
close
• Hypernyms:
expose, exhibit, display
• Verb Frames:
- Somebody ----s something
1. affording unobstructed entrance and exit;
not shut or closed (Freq. 34)
- an open door
- they left the door open
• Syn:
unfastened
• Ant:
shut
• Similar to:
ajar, wide-open
2. affording free passage or access (Freq. 17)
- open drains
- the road is open to traffic
- open ranks
• Ant:
closed
• Similar to:
opened, unstoppered, yawning
• See Also:
unfastened, unsealed
3. with no protection or shield (Freq. 13)
- the exposed northeast frontier
- open to the weather
- an open wound
• Syn:
exposed
• Similar to:
unprotected
4. open to or in view of all (Freq. 7)
- an open protest
- an open letter to the editor
• Similar to:
public
5. used of mouth or eyes (Freq. 4)
- keep your eyes open
- his mouth slightly opened
• Syn:
opened
• Ant:
closed
• Similar to:
agape, gaping, agaze, staring, wide-eyed,
wide, yawning
6. not having been filled (Freq. 4)
- the job is still open
• Similar to:
available
7. accessible to all (Freq. 3)
- open season
- an open economy
• Similar to:
unrestricted
8. not defended or capable of being defended (Freq. 2)
- an open city
- open to attack
• Syn:
assailable, undefendable, undefended
• Similar to:
vulnerable
• Derivationally related forms:
assail (for: assailable), assailability (for: assailable)
9. (of textures) full of small openings or gaps (Freq. 2)
- an open texture
- a loose weave
• Syn:
loose
• Similar to:
coarse, harsh
10. having no protecting cover or enclosure (Freq. 2)
- an open boat
- an open fire
- open sports cars
• Similar to:
unenclosed
11. (set theory) of an interval that contains neither of its endpoints (Freq. 1)
• Ant:
closed
• Topics:
mathematics, math, maths
12. not brought to a conclusion;
subject to further thought (Freq. 1)
- an open question
- our position on this bill is still undecided
- our lawsuit is still undetermined
• Syn:
undecided, undetermined, unresolved
• Similar to:
unsettled
13. not sealed or having been unsealed (Freq. 1)
- the letter was already open
- the opened package lay on the table
• Syn:
opened
• Similar to:
unsealed
14. without undue constriction as from e.g. tenseness or inhibition (Freq. 1)
- the clarity and resonance of an open tone
- her natural and open response
• Similar to:
unconstricted
• Derivationally related forms:
openness
15. ready or willing to receive favorably
- receptive to the proposals
• Syn:
receptive
• Ant:
unreceptive (for: receptive)
• Similar to:
acceptive, acceptant, admissive, assimilative, hospitable
• Derivationally related forms:
openness, receptiveness (for: receptive), receptivity (for: receptive), receive (for: receptive)
16. open and observable;
not secret or hidden
- an overt lie
- overt hostility
- overt intelligence gathering
- open ballots
• Syn:
overt
• Ant:
covert (for: overt)
• Similar to:
bald, barefaced, naked, raw, undisguised, visible
• See Also:
explicit, expressed, unconcealed, public
• Derivationally related forms:
openness
17. not requiring union membership
- an open shop employs nonunion workers
• Similar to:
nonunion
18. affording free passage or view
- a clear view
- a clear path to victory
- open waters
- the open countryside
• Syn:
clear
• Similar to:
unobstructed
• Derivationally related forms:
openness, clear (for: clear), clarity (for: clear)
19. openly straightforward and direct without reserve or secretiveness
- his candid eyes
- an open and trusting nature
- a heart-to-heart talk
• Syn:
candid, heart-to-heart
• Similar to:
ingenuous, artless
• Derivationally related forms:
heart-to-heart (for: heart-to-heart), openness, candidness (for: candid)
20. possibly accepting or permitting
- a passage capable of misinterpretation
- open to interpretation
- an issue open to question
- the time is fixed by the director and players and therefore subject to much variation
• Syn:
capable, subject
• Similar to:
susceptible
• Derivationally related forms:
capability (for: capable)
21. ready for business
- the stores are open
• Similar to:
active
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